A SIP application-level gateway (ALG) is a community system that sits between a SIP-based software and the community. It interprets SIP messages between the applying and the community, and it might additionally carry out different features resembling safety, routing, and cargo balancing.
SIP ALGs are necessary as a result of they might help to enhance the efficiency and safety of SIP purposes. They’ll additionally assist to make sure that SIP purposes are interoperable with totally different networks and units.